25-x=4x

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Solution for 25-x=4x equation:


Simplifying
25 + -1x = 4x

Solving
25 + -1x = 4x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4x' to each side of the equation.
25 + -1x + -4x = 4x + -4x

Combine like terms: -1x + -4x = -5x
25 + -5x = 4x + -4x

Combine like terms: 4x + -4x = 0
25 + -5x = 0

Add '-25' to each side of the equation.
25 + -25 + -5x = 0 + -25

Combine like terms: 25 + -25 = 0
0 + -5x = 0 + -25
-5x = 0 + -25

Combine like terms: 0 + -25 = -25
-5x = -25

Divide each side by '-5'.
x = 5

Simplifying
x = 5

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